I think the right answer to this question is the abundance of services it offers. Besides a classical and habitual kit of instruments which all decent brokers must embed in their platforms, there are such fascinating tools as virtual privaate server for instance, or PAMM account.

I don't suppose they have a big demand, because they are more narrow-focused, nevertheless, just their presence distinguished IronFX from the crowd.

This is a very subjective question, but there are some aspects that can be seen objectively as an advantage of IronFx over its competitors.
Such as the trading account options. They have an incredibly wide list of account types, with some unique features like zero spreads.
Another feature that is of high quality is their education centre and their daily market analyses. Bothe can help you achieve the level of experience that you aspire to. Really useful features.